It is a scientific device. See http://www.ipp.mpg.de/16931/einfuehrung which, although it's ambiguous as to whether any fusion at all is intended to happen, makes it clear that actually producing energy is not a goal. http://www.ipp.mpg.de/17064/strahlenschutz does call it a "fusion device" and suggests that after a few years of operation they'll be putting deuterium in and doing something that produces neutrons, so I guess there must be a plan to do some actual fusion. But, still, intended energy output: zero.

They do not intend fusion of the type you'd run in a power plant to occur. There will be some fusion processes happening, but as far as I understand the sources that's an unavoidable side effect of running Deuterium plasma. It is a plasma containment experiment, not a reactor test.